ASoC: mediatek: mt8195: Constify static snd_soc_ops

These are only assigned to the ops field in the snd_soc_dai_link which
is a pointer to const struct snd_soc_ops. Make them const to allow the
compiler to put them in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20211127093147.17368-1-rikard.falkeborn@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>